Granted Patent
Utility
US 4,289,443 · App. 06/012,407
Apparatus for singly discharging cylindrical workpieces from an inclined rollway
Inventor:
Charles W. Jacob
Patented Case
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Granted: Sep 15, 1981
Filed: Feb 15, 1979
Inventor
Charles W. Jacob
Assignee (at issue)
United States Steel Corporation
This patent predates the USPTO's electronic file wrapper — prosecution documents from this era exist only in the Patent Office's paper records. A certified copy of the file history can be ordered from the USPTO's paper archives.